Circuit-test PSC-6916 Manuale utente
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OPERATION
MANUAL
CIRCUIT-TEST
Switching Mode
Power Supply
PSC-6916
1-16VDC @ 60A
PSC-6932
1-32VDC @ 30A
PSC-6960
1-60VDC @ 15A
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PSC-6916 / 6932 / 6960 08R14
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WARNING ...............................................................................................page 5
CAUTION ........................................................................................................ 5
INTRODUCTION ............................................................................................... 6
WARRANTY ..................................................................................................... 6
CONTROLS AND INDICATORS .......................................................................... 7
CONTROL MODE SELECTION ........................................................................... 8
OPERATING INSTRUCTIONS ........................................................................... 10
REMOTE SENSING (only PSC-6916) ................................................................ 13
ANALOGUE REMOTE CONTROL MODE ......................................................... 14
FAULTS AND TROUBLE SHOOTING ................................................................. 17
SPECIFICATIONS ............................................................................................ 19
PC INTERFACE CONTROL ............................................................................... 20
APPENDIX ..................................................................................................... 30
Contents
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Keep this manual in a safe place for quick reference at all times.
This manual contains important safety and operation instructions for correct use
of the power supply. Read through the manual and pay special attention to the
markings and labels of this unit and equipment to be connected.
Pay special attention to these two types of notices used in this manual
WARNING: Failure to observe this warning may cause injury to persons
and damage to power supply or connected equipment.
CAUTION: Failure to observe this warning may result in damage to
equipment and improper functioning of the power supply.
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2. Caution
• Use a grounded 3 pin AC source.
• This unit is for indoor use only.
• Do not operate or place this unit in a humid, dusty, direct sunlight location or
near any heat source.
• Before plugging into local AC mains, check the rating label at the back of the
unit.
• Do not block any ventilation openings of the unit.
• This unit must be used within the specified rating, regular excessive continuous
loading will damage the power supply.
• The gauge size of input power cable must be at least 0.75mm2 and the total
length of power cable must not exceed 3m.
1. Warning
• Do not use this power supply near water.
• Do not operate or touch this power supply with wet hands.
• Do not open the casing of the power supply when it is connected to AC mains.
• Refer all servicing to qualified service personnel only.
• Replace the AC fuse with the same type and rating as the original fuse.
• Do not touch the metal part of the output terminals.
• This power supply is designed for using in non-cascade environment. It is not
recommended to connect two or more power supplies in parallel or in series.
• Analogue Remote Control or Remote Programming via USB function is only
suitable for stand-alone one unit operation.
• Do not use this power supply with electrical motors, solenoid or inductive load
that generates a back EMF and voltage transient which may damage the power
supply
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4. Warranty
Circuit-Test Electronics warrants to the original purchaser that this product be
free of defect in material or workmanship for a period of 2 years from the date
of purchase.
Any product which has been subjected to misuse or accidental damage is ex-
cluded from the warranty. Except as stated above, Circuit-Test Electronics makes
no promises or warranties either expressed or implied including warranties of
merchantability or the fitness for any particular purpose.
3. Introduction
This family of efficient, upgraded SMPS with small form factor, auto cross over
CV CC, 3 VI presets, remote control offers unique solution for various loading
conditions and applications.
The dual action (coarse/fine tune) rotary encoder tuning with MCU makes setting
the voltage and current levels ever so smooth, precise and fast. Setting, chang-
ing, and checking the current limit level can be done easily without sparking the
output poles.
The analogue remote control functionality allows the output power on/off, voltage
& current can be adjusted without touching the front panel of the power supply.
The USB port is added for access to computer to run cyclical operation with max.
20 programmable sets of preset voltage and current with different time duration
and up to 999 cycles.
It is suitable for a wide range of applications such as laboratory, telecommunica-
tion, production testing, field test of voltage critical distant load, powering of DC
network, etc.
The 3 user defined presets facilitate quick access to frequently used VI settings.
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5. Controls and Indicators
(1) LED panel meter display with CC/CV Indictor
(2) Rear Control Indicator (lights up when using Preset/ Remote Control/ Set
mode)
(3) Output Voltage Control Knob (control both the main and auxiliary output
voltage)
(4) Output Current Control Knob (control both the main and auxiliary output
current limit)
(5) Power ON/OFF Switch
(6) Aux. output terminal (max 5A)
Note: PSC-6916: The total rated current (Aux.+Main) is 60A
PSC-6932: The total rated current (Aux.+Main) is 30A
PSC-6960: The total rated current (Aux.+Main) is 15A
(7) Output Terminal (Rated 60A for PSC-6916/ Rated 30A for PSC-6932/ Rated
15A for PSC-6960)
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(8) Remote Sensing Terminal (for model PSC-6916 only)
Warning • Do not short the remote sensing terminals
• Connecting the remote sensing terminals in reverse
polarity will damage the power supply.
(9) Mode Selection Switch (Normal, Preset, Remote Control, Set Modes)
(10) Recall Selection Switch
(11) Analogue Remote Control Terminal
(12) Cooling Fan Air Intake Grill
(13) AC Input
(14) USB port (for access to computer to run cyclical operation with programmable
voltage, current, period time and cycle)
6. Control Mode Selection
There are 4 modes, Normal, Preset, Set and Remote Control mode for the power
supply.
Slide the Mode Selection Switch (9) to your desired Mode.
The power supply is factory preset to Normal Mode with maximum current level CC.
6.1 Normal Mode
6.2 Preset Mode
a. In this mode, the Rear Control Light is ON to indicate panel V & I controls
are de-activated.
b. There are 3 preset output P1/ P2/ P3 at the Recall Selection Switch (10)
c. The preset values are factory set as following table.
d. End user can set his own output rating, please refer to paragraph 6.3
This is the factory preset mode and the power supply output V, I are controlled
by the dual action tuning knobs. Push the knobs to toggle the coarse and
fine tuning, notice the subtle changes in brightness of related LED. Adjust
the knobs to your desired values by trying coarse and fine tuning. To check
the preset current level, just turn the Current Knob slowly in any direction.
The display will resume its normal brightness after few seconds to double
confirm your adjustment.
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Recall No. Output Voltage Output Current
P1 5V Maximum
P2 13.8V Maximum
P3 PSC-6916: 15V
PSC-6932: 25V
PSC-6960: 55V
Maximum
6.3 Set Mode - First enter into the Set Mode by pushing Switch (9)
to Set Mode slot.
The power supply is then ready to be preset.
a. Select the Recall Switch (10) to the position P1, P2 or P3 which you want
to set
b. Adjust the front panel voltage control knob to set your desired voltage value
c. Adjust the front panel current control knob to set your desired current
limit value
d. Repeat the procedure for remaining recalls P1, P2, P3 if desired.
e. Move Mode Switch (9) from Set to Preset position to confirm your settings.
NOTE:
All preset values will remain unchanged even after the power supply has been
turned off. Always check output voltage of Presets before connecting to Load.
To check the preset values, move Mode Switch (9) to preset position. Move
the Recall Switch (10) to P1, P2 or P3. The V and I settings of corresponding
RECALL P1, P2, P3 will be show on the panel meters.
6.3.1 To define the preset output P1/ P2/ P3.
a. Turn OFF the power supply
b. Push and hold both front panel voltage and current control knobs at the
same time
c. Turn ON the power supply again
d. Release front panel voltage and current control knobs
6.3.2 To reset the unit back to factory setting
6.4 Analogue Remote Control Mode
To control the output voltage and current by remote control connector (11)
Please refer to Section 9.
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Model Number Output Voltage Range Total Rated Current
PSC-6916 1 ~ 16V 0 ~ 60A
PSC-6932 1 ~ 32V 0 ~ 30A
PSC-6960 1 ~ 60V 0 ~ 15A
7. Operating Instructions
7.1
This series has 3 models. Make sure you have used the correct one. They have
different output voltage range and current as following:
7.2
Check the rating label of the power supply and make sure it complies with
your AC mains voltage. Connect the power supply to the AC Mains using the
provided power cord.
Make sure the Mode Switch (9) is at Normal Position.
7.3
The power supply will perform a series of self checks when it is switched ON.
The LED and other indicators on the front panel will turn on. When the
cooling fan is being checked, a high speed wind noise can be heard.
After the self checks, the CV, V and A LED indicators are lit up displaying voltage
and 0.0 current. To find out about the set CC current level, just turn the current
control knob one click in either direction. The current display returns to 0.0 after
a few seconds.
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